Major League Baseball secretly used 2 different types of baseballs last season  — An astrophysicist has collected and taken apart MLB game balls for years, looking for changes.  — She found MLB secretly used two different balls, one lighter than the other, in 2021.

Brian Kelly was such a jerk to Robert Saleh that the Jets coach remembered 15 years later  —  Jets coach Robert Saleh only worked at Central Michigan with Brian Kelly for one year, as a defensive assistant in 2004, and it was not a happy one.  —  Saleh and now-Packers coach Matt LaFleur …

One of Dolphins' oft-injured receivers returns to practice, but the other is not yet ready  —  MIAMI GARDENS — The Miami Dolphins are making progress on getting one of their injured wide receivers back, but the other is still not ready to return to the practice field after two months on injured reserve.

After a whirlwind of spending, the MLB lockout will give Rangers plenty of time to plan next steps  —  Texas has a lot more to think about.  —  This is how it will work.  On Wednesday afternoon, the Rangers will officially introduce the Half-A-Billion Boys at Globe Life Field in Arlington.

Ravens film study: The most surprising part of QB Lamar Jackson's struggles?  Where they're happening.  —  After the lowest-rated passing game of his career, Ravens quarterback Lamar Jackson was asked for a common denominator.  He had just thrown four interceptions.  What, if anything, did the plays have in common?

Daniel Jones week-to-week with neck strain; Mike Glennon expected to start Sunday; Giants sign Jake Fromm  —  Daniel Jones is considered week-to-week with a neck strain, the Daily News has learned, and Giants backup quarterback Mike Glennon is expected to start Sunday against the Dolphins in Miami.

Steelers place OLB T.J. Watt on reserve/COVID-19 list; status unclear for game vs. Ravens  —  The Pittsburgh Steelers have placed star outside linebacker T.J. Watt on the COVID-19 list.  —  The team made the announcement on Monday, a day after the Steelers were embarrassed 41-10 on the road in Cincinnati.

Source - Pirates, catcher Roberto Pérez agree on 1-year MLB deal  —  PITTSBURGH — Catcher Roberto Perez and the Pittsburgh Pirates are in agreement on a one-year contract, a source familiar with the deal tells ESPN's Jeff Passan.  —  The deal, which is contingent upon Perez passing a physical …

Sources: Expanded playoffs, draft lottery proposals in CBA negotiations  —  Major League Baseball's expanded playoff proposal, as part of a new collective bargaining agreement between owners and players, includes the ability for division winners to pick their wild-card opponent, according to sources familiar with the negotiations.

Gary Sanchez returning to Yankees as team will tender him contract  —  Earlier this offseason, general manager Brian Cashman said he was “exploring” options to upgrade at catcher.  —  And if he didn't find anything, the GM said, “We'll come back with what we have.”